Cooperative interference mitigation and handover management for heterogeneous cloud small cell networks
Cooperative interference mitigation and handover management for heterogeneous cloud small cell networks
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DOI：
10.1109/mwc.2015.7143331
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发表时间：
2015-04
影响因子：
12.9
通讯作者：
Haijun Zhang;Chunxiao Jiang;Julian Cheng
中科院分区：
文献类型：
--
作者：
Haijun Zhang;Chunxiao Jiang;Julian Cheng
异构小小区网络为满足用户爆炸性的数据业务需求而吸引了很多关注。将云计算和异构小小区网络相结合的异构云小小区网络（HCSNet）将可能在5G移动的通信网络中发挥重要作用。然而，随着小小区的大规模部署，同信道干扰和切换管理是HCSNet中的两个重要问题，特别是对于小区边缘用户。在这篇文章中，我们研究的问题，合作干扰缓解和切换管理HCSNet。描述了一种将联合收割机云无线电接入网络与小小区相结合的网络架构。采用了一种有效的基于亲和传播的CoMP分簇方案来降低小区边缘用户的干扰。提出了一种低复杂度的切换管理方案，分析了HCSNet中切换管理的信令流程。数值结果表明，与建议的网络架构，CoMP分簇和切换管理方案可以显着增加HCSNet的容量，同时保持用户的服务质量。
Heterogeneous small cell networks have attracted much attention for satisfying users' explosive data traffic requirements. The heterogeneous cloud small cell network (HCSNet), which combines cloud computing and a heterogeneous small cell network, will likely play an important role in 5G mobile communication networks. However, with massive deployment of small cells, co-channel interference and handover management are two important problems in an HCSNet, especially for cell edge users. In this article, we examine the problems of cooperative interference mitigation and handover management in an HCSNet. A network architecture is described to combine cloud radio access network with small cells. An effective CoMP clustering scheme using affinity propagation is adopted to mitigate cell edge users' interference. A low-complexity handover management scheme is presented, and its signaling procedure is analyzed in an HCSNet. Numerical results show that with the proposed network architecture, CoMP clustering and handover management schemes can significantly increase the capacity of HCSNet while maintaining users' quality of service.